• measure Urinary osmolality

    Study:Netherlands Twin Register
    Mode of collection: MeasurementsAndTests    Biological sample/measurement
    Available measurements:
    Young Netherlands Twin Register  YC_ACTION BB1_1 YC_ACTION BB1_2 YC_ACTION BB2 YC_ACTION - BB3
     
    0
    5
    10
    15
    20
    25
    30
    years
    Urinary osmolality was measured with a density test (specific gravity) using the Atago refractometer PAL-10S BLT/A+W (Atago, Tokyo, Japan). The refractive index is a ratio of the velocity of light in air to the velocity of light in solution, which is directly proportional to the number of dissolved solids in urine.
    Created October 17, 2024 • Updated October 20, 2024

  • measure Buccal swab

    Study:Netherlands Twin Register
    Mode of collection: MeasurementsAndTests    Biological sample/measurement
    Available measurements:
    Young Netherlands Twin Register  YC_ACTION BB1_1 YC_ACTION BB1_2 YC_ACTION BB2 YC_ACTION - BB3 YC_BS1 YC_BS2 YC_BS3 YC_DSC YE_FITNSS YE_ATTEF1 YE_ATTEF2 YE_ATTEF3 YC_ADHMRI YE_COG18
     
    0
    5
    10
    15
    20
    25
    30
    years
    Buccal swabs are collections of buccal cell scrapings obtained by rubbing buds along the inside of the mouth.
    Created October 17, 2024 • Updated October 20, 2024

  • measure Stroop color-word task

    Study:Netherlands Twin Register
    Mode of collection: MeasurementsAndTests    Behavioral/cognitive task
    Available measurements:
    Young Netherlands Twin Register  YC_BS1 YC_BS2 YE_ATTEF2 YC_ADHMRI YE_COG18
     
    0
    5
    10
    15
    20
    25
    30
    years
    The Stroop color-word task consists of pairs of conflicting word and color stimuli, both being inherent aspects of the same symbols, presented simultaneously, for example a name of one color printed in the ink of another color. The difference in time for reading the words printed in colors and the same words printed in black is the measure of the...
    Created October 17, 2024 • Updated October 20, 2024

  • measure LC-MS amines

    Study:Netherlands Twin Register
    Mode of collection: MeasurementsAndTests    Biological sample/measurement
    Available measurements:
    Young Netherlands Twin Register  YC_ACTION BB1_1 YC_ACTION BB1_2 YC_ACTION BB2 YC_ACTION - BB3
     
    0
    5
    10
    15
    20
    25
    30
    years
    Liquid chromatography mass spectrometry (LC-MS) platform targeting amines.
    Created October 17, 2024 • Updated October 20, 2024

  • measure Neuropeptides

    Study:Netherlands Twin Register
    Mode of collection: MeasurementsAndTests    Biological sample/measurement
    Available measurements:
    Young Netherlands Twin Register  YC_ACTION BB1_1 YC_ACTION BB1_2 YC_ACTION BB2 YC_ACTION - BB3
     
    0
    5
    10
    15
    20
    25
    30
    years
    Neuropeptides, including Substance P, Beta-endorphin, Dynorphin A, neurotensin, and Leu-enkaphalin, were measured with traditional enzymatic tests, such as Enzyme-Linked Immunosorbent Assays (ELISA).
    Created October 17, 2024 • Updated October 20, 2024

  • measure NMR metabolomics

    Study:Netherlands Twin Register
    Mode of collection: MeasurementsAndTests    Biological sample/measurement
    Available measurements:
    Young Netherlands Twin Register  YE_COG18
     
    0
    5
    10
    15
    20
    25
    30
    years
    Untargeted proton nuclear magnetic resonance (1H-NMR) metabolomics platform.
    Created October 17, 2024 • Updated October 20, 2024

  • measure Genotyping (array)

    Study:Netherlands Twin Register
    Mode of collection: MeasurementsAndTests    Biological sample/measurement
    Available measurements:
    Young Netherlands Twin Register  YC_ACTION BB1_1 YC_ACTION BB1_2 YC_ACTION BB2 YC_ACTION - BB3 YC_BS1 YC_BS2 YC_BS3 YC_DSC YE_FITNSS YC_ADHMRI YE_COG18
     
    0
    5
    10
    15
    20
    25
    30
    years
    Assessment of single nucleotide polymorphisms (SNPs) as obtained through genotyping arrays.
    Created October 17, 2024 • Updated October 20, 2024

  • measure Verbal Fluency Test

    Study:Netherlands Twin Register
    Mode of collection: MeasurementsAndTests    Behavioral/cognitive task
    Available measurements:
    Young Netherlands Twin Register  YC_BS2 YE_COG18
     
    0
    5
    10
    15
    20
    25
    30
    years
    The Verbal Fluency Test assesses how many words that belong to the same predetermined category participants can produce in a given time (usually 60 seconds). This category can be semantic, specified objects such as animals or fruits, or phonological, words beginning with a specified letter such as p.
    Created October 17, 2024 • Updated October 20, 2024

  • measure Skinfold thickness

    Study:Netherlands Twin Register
    Mode of collection: MeasurementsAndTests    Biological sample/measurement
    Available measurements:
    Young Netherlands Twin Register  YE_COG18
     
    0
    5
    10
    15
    20
    25
    30
    years
    Skinfold thickness is an assessment of body fat which can noninvasively and reliably be measured at various sites of the body using a skinfold caliper. Based on measurements at multiple sites of the body, the total body fat and contribution of fat to the body mass can be estimated.
    Created October 17, 2024 • Updated October 20, 2024

  • measure Heart beat perception

    Study:Netherlands Twin Register
    Mode of collection: MeasurementsAndTests    Behavioral/cognitive task
    Available measurements:
    Young Netherlands Twin Register  YE_ATTEF3
     
    0
    5
    10
    15
    20
    25
    30
    years
    In Heart beat perception, participants were asked to judge their own heart rate by introspective visceral awareness, i.e. without palpitating the arterial pulse signal at wrist or neck. They judged their mean heart rate per minute over three short periods (25, 35 and 45 seconds).
    Created October 17, 2024 • Updated October 20, 2024

  • measure Controlled Oral Word Association task (COWA)

    Study:Netherlands Twin Register
    Mode of collection: MeasurementsAndTests    Behavioral/cognitive task
    Available measurements:
    Young Netherlands Twin Register  YC_BS1
     
    0
    5
    10
    15
    20
    25
    30
    years
    The Controlled Oral Word Association task (COWA) is a subtest of the Multilingual Aphasia Exam and measures verbal fluency. In the task, participants are given a specific semantic category (jobs or animals) or letter ("r" or "t") and are asked to generate as many words as possible in that specific category or starting with that specific letter. The number...
    Created October 17, 2024 • Updated October 20, 2024

  • measure Revisie Amsterdamse Kinder Intelligentie Test (RAKIT)

    Study:Netherlands Twin Register
    Mode of collection: MeasurementsAndTests    Behavioral/cognitive task
    Available measurements:
    Young Netherlands Twin Register  YE_ATTEF1 YE_COG10
     
    0
    5
    10
    15
    20
    25
    30
    years
    The Revisie Amsterdamse Kinder Intelligentie Test (RAKIT) assesses intelligence quotient (IQ) in children between 4 and 11 years old.
    Created October 17, 2024 • Updated October 20, 2024

  • measure Iowa and Bangor Gambling Tasks

    Study:Netherlands Twin Register
    Mode of collection: MeasurementsAndTests    Behavioral/cognitive task
    Available measurements:
    Young Netherlands Twin Register  YC_BS3
     
    0
    5
    10
    15
    20
    25
    30
    years
    The Iowa and Bangor Gambling Tasks are psychological tasks thought to simulate real-life decision making. It measures an individual's approach to risk-taking, impulsivity, and ability to delay short-term gratification to achieve long-term rewards. The Bangor Gambling Task is a simplified version of the Iowa Gambling Task.
    Created October 17, 2024 • Updated October 20, 2024

  • measure Mental Rotations Test (MRT)

    Study:Netherlands Twin Register
    Mode of collection: MeasurementsAndTests    Behavioral/cognitive task
    Available measurements:
    Young Netherlands Twin Register  YE_ATTEF3
     
    0
    5
    10
    15
    20
    25
    30
    years
    In the Mental Rotations Test (MRT), participants are asked to compare two-dimensional drawings and three- dimensional geometric figures in order to assess spatial processing.
    Created October 17, 2024 • Updated October 20, 2024

  • measure Eriksen flanker task

    Study:Netherlands Twin Register
    Mode of collection: MeasurementsAndTests    Behavioral/cognitive task
    Available measurements:
    Young Netherlands Twin Register  YC_BS1 YE_ATTEF2 YC_ADHMRI
     
    0
    5
    10
    15
    20
    25
    30
    years
    The Eriksen Flanker task is a response inhibition test used to assess the ability to suppress responses that are inappropriate in a particular context. During the task, participants are presented with a central target stimulus (e.g., letter, arrow) and are asked to identify the identity or direction of the central stimulus, while ignoring surrounding...
    Created October 17, 2024 • Updated October 20, 2024

  • measure Spatial N-back Task

    Study:Netherlands Twin Register
    Mode of collection: MeasurementsAndTests    Behavioral/cognitive task
    Available measurements:
    Young Netherlands Twin Register  YC_BS1 YC_BS2 YE_COG18
     
    0
    5
    10
    15
    20
    25
    30
    years
    The Spatial N-back Task assesses visuospatial working memory. In the task, participants are instructed to remember and respond to the location of a stimulus on the screen throughout the task, either directly following the stimulus, or with a delay of one or more stimuli.
    Created October 17, 2024 • Updated October 20, 2024

  • measure LC-MS steroid hormones

    Study:Netherlands Twin Register
    Mode of collection: MeasurementsAndTests    Biological sample/measurement
    Available measurements:
    Young Netherlands Twin Register  YC_ACTION BB2 YC_ACTION - BB3 YC_BS1
     
    0
    5
    10
    15
    20
    25
    30
    years
    Liquid chromatography mass spectrometry (LC-MS) platform targeting steroid hormones.
    Created October 17, 2024 • Updated October 20, 2024

  • measure VU University Ambulatory Monitoring System (VU-AMS)

    Study:Netherlands Twin Register
    Mode of collection: MeasurementsAndTests    Biological sample/measurement
    Available measurements:
    Young Netherlands Twin Register  YE_FITNSS YE_ATTEF3 YE_COG18
     
    0
    5
    10
    15
    20
    25
    30
    years
    The VU University Ambulatory Monitoring System (VU-AMS) enables non-invasive ambulatory measurement of the autonomic nervous system for research purposes and can be used to measure: Heart Rate/Inter beat Interval (IBI), Heart Rate Variability (SDNN, RMSSD, IBI power spectrum: HF, LF), Respiratory Sinus Arrhythmia (RSA), Pre-Ejection Period (PEP), Left...
    Created October 17, 2024 • Updated October 20, 2024

  • measure Raven's Progressive Matrices Test (RPM)

    Study:Netherlands Twin Register
    Mode of collection: MeasurementsAndTests    Behavioral/cognitive task
    Available measurements:
    Young Netherlands Twin Register  YC_BS1 YC_BS2 YE_ATTEF3
     
    0
    5
    10
    15
    20
    25
    30
    years
    Raven's Progressive Matrices (often referred to simply as Raven's Matrices or RPM) is a non-verbal test used to measure general intelligence and abstract reasoning. It is one of the most common tests administered to both groups and individuals ranging from 5-years-olds to the elderly. It consists of 60 multiple choice questions, listed in order of...
    Created October 17, 2024 • Updated October 20, 2024

  • measure GC-MS organic acids

    Study:Netherlands Twin Register
    Mode of collection: MeasurementsAndTests    Biological sample/measurement
    Available measurements:
    Young Netherlands Twin Register  YC_ACTION BB1_1 YC_ACTION BB1_2 YC_ACTION BB2 YC_ACTION - BB3
     
    0
    5
    10
    15
    20
    25
    30
    years
    Gas chromatography mass spectrometry (GC-MS) platform targeting organic acids.
    Created October 17, 2024 • Updated October 20, 2024
You can also access this registry using the API (see API Docs).